Performance Testing of Extruded Petfoods

Pet food producers benefit in several ways by using the RVA for quality control:

  • Assessing the degree of cook in unfinished food identifies problems in the extrusion and cooking processes. Identifying flaws earlier in the process saves time and money through reduce scrap and re-work.
  • Testing incoming starch before extrusion independently verifies the quality of the starch being supplied. Starch producers know which starch processors verify the quality of their product.

The RVA can determine how cooked the product is. In testing a ground finished petfood, the RVA provides a numerical representation of “degree of cook". This ensures all the products are cooked to exactly the same extent-all the time, every time. Consistent degree of cook is crucial to the texture, durability and - in som instances - digestibility of each pellet. Variations in degree of cook point to variations in the extrusion process before the product is finished.

Once an RVA test is initiated, the operator doesn’t need to be present. The results are digitally archived on the attached PC and reported automatically. The RVA eliminates sources of operator error and allows operators to be more efficient with their time.

The RVA is a user-friendly, cost-effective instrument that ensures a consistent degree of cook in finished pet food, resulting in a product that is the same-every time, for every end user. Out-of-spec batches can be identified at every stage of production: raw starch, dough, unfinished pellets, and finished product.